Casting machine



June 7, 1927.

CASTING' MACHINE kOriginal Filed Dec, 1' 1922 y I ATvl-OARNEY Patented June 7, 1927.

jrAnrR-aenaisrie; @emmene memoriam.'

Application;leaneeember 1,1922,se141a1irof-eo4azafaeneweanovembef1, 1926-. i l

` "Fh'e' invention relates tol improvements in machines for making castings, and in par- '.ticular'to that typ'e of machine employing metallic' mold members inl conj-unctionvwith 'l metallic or sand cores,- or, without cores.

y Present machines of this' charactenl vobserve, are deficient in durability and positivenes's of opfeiationE because of the 'contlifnuouswarping: of the molds,A also, certain parts ofthe' meta'lli'c molds areprone to burn Vout prematurely, thus producing linnedl and Y imperfect castings which' necessitates rejecti ing them-` as defective or unacceptable" tothey jtr-'ade Y y 1 To overcome the above: objectionsis among myobject-s; A @ther objects of importance, in-

, lclude,-t'he provision of a bipartite'mold havving meansy toA prevent' the vwarping.'V 'of its lmembers, thefpr'o-vision ofsectionali mold members" ini pairs adapted to beinterehanged 'or'` replac`ed', pairsfjha'ving" different mold cavities' and adapted` to receive metal-'or sand cores,- and' power means for closing and mechan'ioalmeansfor opening the moldaf I-attaini thef above andj other' objects by the mechanism-"and features of :construction shown in? theraccompanying' sheet-of'drawings, in which Ihave chosenas an' illustration of my invention, the vmachine adapted for cas'tin'g windovii-weights.I

yFigure l of the drawings, is a partial side elevation of the machine, certain parts being shown in section, the section through the mold being taken on the line A-A of Fig. 2, looking in the direction of the arrows.

Figure 2 is a partial plan view, part of the mold being shown Vin full, and the remainder in section along the line B-'-B of Fig. 3..

Figure 3 is a side elevation of oneend of the machine, showing the mold members and their supports, a portion vof the end mem-` bers being broken away to show the coilspring compressed.

The numeral l throughout the drawings, represents the frame or foundation of my machine, which in this instance is of I beam construction, and upon which is secured at one end a power unit 2, this unit being preferably a cylinder 3 w1th'the`usual piston and rings 4, the pistonbemg operable on one side-by power means, such as pneumatic or hydraulic pressure controlled by the threeway valve 5. On the opposite end of the cylinder is a vacuum and relief valve 5.

l To the opposite end of the frame are lixi'holcl members. i

:ably secured* the piston rod'l4 as at 15.

through therstationary mold' half.-

Aedlyf securedI standards 6,!forl supporting a flan-ged crossimei'nber as 'the channel T, and *to which1 are suspendedly se'curedf by they lug 81 zridfbolt bearing on' thefacing-Spot'-S,` a 60A serreso'ff.fha'lfmold sections 9. Ai-s-im'ilar series 9^ Vcempl@ting the infield paper is similarly suspended and secured, but its `channel member 7 is? supported on movable standarde 4l0,.tl11e`base of thelhtter being rollers 65 lllgpositioned within close' proXimity Aof its 'Securedy midway inthe channel' 7V as at'lQ,

1s' th'episton-rodg head 18,2t'o .which is adjust- 'llhe end members of the mold, are rel cessed 'at the top an'd` bottom on their meet-Y A ing.A faces :isnt-17, for the housing ofj coil- 1 Y springs 18 fora purposeto be presently described Concentricwithin the saidl recesses 75 are' provided-` long' dowel pins- 19, which are threaded at the head end as at 20 for fixed? engagementwithlthemovable half ofy theVV moldl. TheY dow-el,- itv will-.be observed, is

slidably moves :therethroughlv as well'v vas.

- At the'top of each halfmold, the channel gate 2l .1 for the receptionof the ymol-ten Imetalggis securedas atf22v to asmany mold 85 sections assis-desired.- H

f The cavities 23 shown in the molds are K for the formation of window-weights. Near Y the bottom of each cavity are pins 24 for coring the eyelet of the weight, and may be 9o of chilled-iron or sand and have conical meeting ends asshown in Fig. l. The mold sections and channel gate are also preferably of chilled-iron.

The mold sections 9 and 9 are similar and 95 interchangeable and replaceable.v On the side faces of each mold section, are cored y recesses 25 the full length, forming, when the series are put together an air space on both sides ofeachcavity for venting thefloo of the introduction of cores to the mold cavities.

In the operation of the machine, the meeting faces of the bipartite mold are first observed to see if `clean and free, then the three-Way valve 5 is opened to apply the pressure means on the piston 4 lto closethe mold as shown in the drawings, for and during the pouring process. The pouring being completed, the three-Way valve is then reversed, and the sudden release'of pressure n within the cylinder coupled With the `reaction stood that the invention may be embodied in other forms, each being a species of my invention, and the patent protection that I def sire, is all of that which comes Within .the Y spirit and scope of What I claim as new, and

which claims are the following: n

1. lAs an element of a casting machine, a mold section having a cavity on one face and recesses on its side faces at the parting line of the mold, suoli, that When similar sections' areV positioned side by side .a vent shaft Will be formed centrally between the. castings for the escapement of heat radiation.

2. In combination in a casting machine, a mold section and a channel cross-member, the section having a cavity on one face and on its opposite face a central facing-spot and a lug projecting from said face above said spot, the lug and spot adapted to engage the said cross-member for support in suspension in said machine, and a bolt for holding said mold to said cross-member. 3).4 In a casting machine, a bipartite mold having recesses on its meeting faces for housing coil-springs, the latter adapted to force the faces apart When external pressure is released on the mold. l

4. In a Vcasting machine, a bipartite mold lhaving recesses on its meeting faces for housing coil-springs, dowel pins extending through said mold and springs, the latter adaijited to force one part of the mold awayI standards, the other partv of said mold also supported on a transverse channelmember the ends of which adapted to be supported on movable standards having Wheels to allow said movable mold part to, travel in a parallel and longitudinal direction, a piston rod Fixed to the channel member of said movable mold, a piston on the opposite end of said rod adapted to reciprocate in a cylinder, and means for applying pressure on said piston to force the molds together against the pressure vof said springs. -f

WALTER J.v oiiRisTin. Y 

